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Feature
Material :POM body, Full CNC Made Cover, NSK BearingCompatible: fit most version MTB Road Bike with 4/5/6mm roller screw axis
Specification:Thickness 8mm, narrow wide shape teeth
Include:1 pcs wheel rear derailleur and two short tube
Weight :11g
Description
Compatiblefit most version MTB Road Bike with hole diameter 4/5/6mma pair wheel use more efficiency than a single wheel use